User's Manual

Antenna Controller User Manual Ver. 1.00
Electrical Installation
P/N 1100031 page 2-4
2.3 Antenna Cable Connections
GND SIG GND GND GNDSIG SIG SIG
ANT-1 ANT-2 ANT-3 ANT-4
ANTENNA
1
ANTENNA
2
ANTENNA
3
ANTENNA
4
Figure 2-8: Antenna Terminal Block
Twisted pair wire can be used for distances of up to 20 centimeters.
At any distance ranging between 20 cm. and 1.2 m., coaxial cable should be used.
For distances from 1.2 m. to 33 m. coaxial cable is used, in half-length multiples of the
wavelength. See table 3-1 for half- wavelength calculations.
(Cable length over 33 m. is possible but reading distance will be reduced).
Table 2-1: Half Wavelengths by Cable Type
Cable Type
λ
λλ
λ
/2
RG-58 7.30 m.
RG-174 7.30m.
14008 7.70m
Raychem EPD 84952Q 8.20m
Belden 89307 8.83m
When using coaxial cable, the center lead is connected to “SIG”, the shield to “GND”.